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876572-BIM-C-0213
Return Box
Grille
Filter
Return Box
Flex Duct
1
May use duct connector without
damper if no interior furnace or air
handler is connected to duct system.
2
Return duct may be oversized
to accommodate the maximum
8" static pressure
Figure 7: Wye Installation (Inlet and Outlet)
Discharge Duct Installation
If an interior furnace or air handler will be connected to the
supply duct system, the supply duct connector should be
equipped with a damper. See Figure 8.
If no interior furnace or air handler will be connected to the
ductwork, the duct connector may be a 12"diameter round duct.
See Figure 9.
When locating the duct connector, check carefully for floor
joists, axles, wheels and frame members that could interfere
with the installation of the duct connector or the running of the
Damper Blocks Flow of Warm Air Into
Condensing Unit During Heating Season.
Duct Connector
(With Damper)
Figure 8: Duct Connector (With Damper)
10
2
Grille
Filter
Factory Installed Hinged, Heating
Flex Duct
12 x12 x12
12 x12 x12
WYE
WYE
Inlet
Outlet
Flange
Flange
duct. Ideally, the duct connector should be located in the bottom
of the main duct, forward of center of the manufactured home.
Do not install duct connector under a register.This will help to
eliminate the transmission of sound into the home.
To locate the center of the duct, first cut a 6" hole in the
fiberboard below the duct at the desired location.After locating
the duct center, increase the hole in the fiber board to
approximately the size of the duct connector.
Duct Connector
(No Damper)
Figure 9: Duct Connector (No Damper)
Damper*
1
12" Duct Connectors
Damper*
Flex Duct
WYE Insulation Recommended
for Greater Efficiency and
Performance of Unit.
"
4
Johnson Controls Unitary Products
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